feat: wait for postage stamp to be usable when bying it (#352)

* feat: wait for postage stamp to be usable when bying it

* refactor: simplified the waitUntilStampUsable function

src/utils/index.ts

@@ -2,6 +2,7 @@ import { BigNumber } from 'bignumber.js'
 import { Token } from '../models/Token'
 import { decodeCid } from '@ethersphere/swarm-cid'
 import { BZZ_LINK_DOMAIN } from '../constants'
+import { BatchId, BeeDebug, PostageBatch } from '@ethersphere/bee-js'
 
 /**
  * Test if value is an integer
@@ -216,3 +217,29 @@ export function shortenText(text: string, length = 20, separator = '[…]'): str
 
   return `${text.slice(0, length)}${separator}${text.slice(-length)}`
 }
+
+const DEFAULT_POLLING_FREQUENCY = 1_000
+const DEFAULT_STAMP_USABLE_TIMEOUT = 120_000
+
+interface Options {
+  pollingFrequency?: number
+  timeout?: number
+}
+
+export async function waitUntilStampUsable(
+  batchId: BatchId,
+  beeDebug: BeeDebug,
+  options?: Options,
+): Promise<PostageBatch> {
+  const timeout = options?.timeout || DEFAULT_STAMP_USABLE_TIMEOUT
+  const pollingFrequency = options?.pollingFrequency || DEFAULT_POLLING_FREQUENCY
+
+  for (let i = 0; i < timeout; i += pollingFrequency) {
+    const stamp = await beeDebug.getPostageBatch(batchId)
+
+    if (stamp.usable) return stamp
+    await sleepMs(pollingFrequency)
+  }
+
+  throw new Error('Wait until stamp usable timeout has been reached')
+}